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Finding the Fourth Proportional to 95,681,503.80, 143,522,255.70 and 90,642,655.80

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Solution

The fourth proportional to 95,681,503.80, 143,522,255.70 and 90,642,655.80 is: 135,963,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,681,503.80 : 143,522,255.70 = 90,642,655.80 : x
  2. Step 2: Convert to fraction form
    95,681,503.80/143,522,255.70 = 90,642,655.80/x
  3. Step 3: Cross multiply
    95,681,503.80x = 143,522,255.70 × 90,642,655.80
  4. Step 4: Simplify right side
    95,681,503.80x = 13,009,238,423,054,686
  5. Step 5: Solve for x
    x = 13,009,238,423,054,686/95,681,503.80
  6. Step 6: Final answer
    x = 135,963,983.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.