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Finding the Fourth Proportional to 125,043.96, 172,549.68 and 70,593.18

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Solution

The fourth proportional to 125,043.96, 172,549.68 and 70,593.18 is: 97,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,043.96 : 172,549.68 = 70,593.18 : x
  2. Step 2: Convert to fraction form
    125,043.96/172,549.68 = 70,593.18/x
  3. Step 3: Cross multiply
    125,043.96x = 172,549.68 × 70,593.18
  4. Step 4: Simplify right side
    125,043.96x = 12,180,830,619.18
  5. Step 5: Solve for x
    x = 12,180,830,619.18/125,043.96
  6. Step 6: Final answer
    x = 97,412.39

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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.