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Finding the Fourth Proportional to 70,881.80, 97,773.63 and 42,182.22

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Solution

The fourth proportional to 70,881.80, 97,773.63 and 42,182.22 is: 58,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.80 : 97,773.63 = 42,182.22 : x
  2. Step 2: Convert to fraction form
    70,881.80/97,773.63 = 42,182.22/x
  3. Step 3: Cross multiply
    70,881.80x = 97,773.63 × 42,182.22
  4. Step 4: Simplify right side
    70,881.80x = 4,124,308,770.86
  5. Step 5: Solve for x
    x = 4,124,308,770.86/70,881.80
  6. Step 6: Final answer
    x = 58,185.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.