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Finding the Fourth Proportional to 97,412.80, 134,428.08 and 52,700.80

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Solution

The fourth proportional to 97,412.80, 134,428.08 and 52,700.80 is: 72,726.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,412.80 : 134,428.08 = 52,700.80 : x
  2. Step 2: Convert to fraction form
    97,412.80/134,428.08 = 52,700.80/x
  3. Step 3: Cross multiply
    97,412.80x = 134,428.08 × 52,700.80
  4. Step 4: Simplify right side
    97,412.80x = 7,084,467,358.46
  5. Step 5: Solve for x
    x = 7,084,467,358.46/97,412.80
  6. Step 6: Final answer
    x = 72,726.25

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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.