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Finding the Fourth Proportional to 281,572.92, 388,567.54 and 152,508.19

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Solution

The fourth proportional to 281,572.92, 388,567.54 and 152,508.19 is: 210,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,572.92 : 388,567.54 = 152,508.19 : x
  2. Step 2: Convert to fraction form
    281,572.92/388,567.54 = 152,508.19/x
  3. Step 3: Cross multiply
    281,572.92x = 388,567.54 × 152,508.19
  4. Step 4: Simplify right side
    281,572.92x = 59,259,732,218.15
  5. Step 5: Solve for x
    x = 59,259,732,218.15/281,572.92
  6. Step 6: Final answer
    x = 210,459.63

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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.