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Finding the Fourth Proportional to 70,346.80, 97,123.88 and 62,780.16

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Solution

The fourth proportional to 70,346.80, 97,123.88 and 62,780.16 is: 86,677.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,346.80 : 97,123.88 = 62,780.16 : x
  2. Step 2: Convert to fraction form
    70,346.80/97,123.88 = 62,780.16/x
  3. Step 3: Cross multiply
    70,346.80x = 97,123.88 × 62,780.16
  4. Step 4: Simplify right side
    70,346.80x = 6,097,452,726.22
  5. Step 5: Solve for x
    x = 6,097,452,726.22/70,346.80
  6. Step 6: Final answer
    x = 86,677.04

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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.