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Finding the Fourth Proportional to 288,007.53, 432,084.20 and 88,338.08

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Solution

The fourth proportional to 288,007.53, 432,084.20 and 88,338.08 is: 132,529.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,007.53 : 432,084.20 = 88,338.08 : x
  2. Step 2: Convert to fraction form
    288,007.53/432,084.20 = 88,338.08/x
  3. Step 3: Cross multiply
    288,007.53x = 432,084.20 × 88,338.08
  4. Step 4: Simplify right side
    288,007.53x = 38,169,486,024.22
  5. Step 5: Solve for x
    x = 38,169,486,024.22/288,007.53
  6. Step 6: Final answer
    x = 132,529.47

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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.