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Finding the Fourth Proportional to 461,484.80, 692,248.80 and 145,966.40

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Solution

The fourth proportional to 461,484.80, 692,248.80 and 145,966.40 is: 218,956.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,484.80 : 692,248.80 = 145,966.40 : x
  2. Step 2: Convert to fraction form
    461,484.80/692,248.80 = 145,966.40/x
  3. Step 3: Cross multiply
    461,484.80x = 692,248.80 × 145,966.40
  4. Step 4: Simplify right side
    461,484.80x = 101,045,065,240.32
  5. Step 5: Solve for x
    x = 101,045,065,240.32/461,484.80
  6. Step 6: Final answer
    x = 218,956.43

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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.