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Finding the Fourth Proportional to 157,646.20, 236,123.70 and 136,910.20

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Solution

The fourth proportional to 157,646.20, 236,123.70 and 136,910.20 is: 205,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,646.20 : 236,123.70 = 136,910.20 : x
  2. Step 2: Convert to fraction form
    157,646.20/236,123.70 = 136,910.20/x
  3. Step 3: Cross multiply
    157,646.20x = 236,123.70 × 136,910.20
  4. Step 4: Simplify right side
    157,646.20x = 32,327,742,991.74
  5. Step 5: Solve for x
    x = 32,327,742,991.74/157,646.20
  6. Step 6: Final answer
    x = 205,065.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.