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Finding the Fourth Proportional to 151,330.95, 208,834.13 and 83,354.28

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Solution

The fourth proportional to 151,330.95, 208,834.13 and 83,354.28 is: 115,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,330.95 : 208,834.13 = 83,354.28 : x
  2. Step 2: Convert to fraction form
    151,330.95/208,834.13 = 83,354.28/x
  3. Step 3: Cross multiply
    151,330.95x = 208,834.13 × 83,354.28
  4. Step 4: Simplify right side
    151,330.95x = 17,407,217,501.41
  5. Step 5: Solve for x
    x = 17,407,217,501.41/151,330.95
  6. Step 6: Final answer
    x = 115,027.48

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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.