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Finding the Fourth Proportional to 97,703.90, 134,805.73 and 56,300.70

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Solution

The fourth proportional to 97,703.90, 134,805.73 and 56,300.70 is: 77,680.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,703.90 : 134,805.73 = 56,300.70 : x
  2. Step 2: Convert to fraction form
    97,703.90/134,805.73 = 56,300.70/x
  3. Step 3: Cross multiply
    97,703.90x = 134,805.73 × 56,300.70
  4. Step 4: Simplify right side
    97,703.90x = 7,589,656,681.51
  5. Step 5: Solve for x
    x = 7,589,656,681.51/97,703.90
  6. Step 6: Final answer
    x = 77,680.19

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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.