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Finding the Fourth Proportional to 445,572.52, 668,347.68 and 130,032.16

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Solution

The fourth proportional to 445,572.52, 668,347.68 and 130,032.16 is: 195,045.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,572.52 : 668,347.68 = 130,032.16 : x
  2. Step 2: Convert to fraction form
    445,572.52/668,347.68 = 130,032.16/x
  3. Step 3: Cross multiply
    445,572.52x = 668,347.68 × 130,032.16
  4. Step 4: Simplify right side
    445,572.52x = 86,906,692,461.39
  5. Step 5: Solve for x
    x = 86,906,692,461.39/445,572.52
  6. Step 6: Final answer
    x = 195,045.00

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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.