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Finding the Fourth Proportional to 117,702.40, 176,404.80 and 47,542.40

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Solution

The fourth proportional to 117,702.40, 176,404.80 and 47,542.40 is: 71,253.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,702.40 : 176,404.80 = 47,542.40 : x
  2. Step 2: Convert to fraction form
    117,702.40/176,404.80 = 47,542.40/x
  3. Step 3: Cross multiply
    117,702.40x = 176,404.80 × 47,542.40
  4. Step 4: Simplify right side
    117,702.40x = 8,386,707,563.52
  5. Step 5: Solve for x
    x = 8,386,707,563.52/117,702.40
  6. Step 6: Final answer
    x = 71,253.50

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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.