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Finding the Fourth Proportional to 225,603.60, 311,429.03 and 152,032.17

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Solution

The fourth proportional to 225,603.60, 311,429.03 and 152,032.17 is: 209,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,603.60 : 311,429.03 = 152,032.17 : x
  2. Step 2: Convert to fraction form
    225,603.60/311,429.03 = 152,032.17/x
  3. Step 3: Cross multiply
    225,603.60x = 311,429.03 × 152,032.17
  4. Step 4: Simplify right side
    225,603.60x = 47,347,230,471.73
  5. Step 5: Solve for x
    x = 47,347,230,471.73/225,603.60
  6. Step 6: Final answer
    x = 209,869.13

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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.