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Finding the Fourth Proportional to 117,123.60, 175,702.44 and 38,218.40

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Solution

The fourth proportional to 117,123.60, 175,702.44 and 38,218.40 is: 57,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,123.60 : 175,702.44 = 38,218.40 : x
  2. Step 2: Convert to fraction form
    117,123.60/175,702.44 = 38,218.40/x
  3. Step 3: Cross multiply
    117,123.60x = 175,702.44 × 38,218.40
  4. Step 4: Simplify right side
    117,123.60x = 6,715,066,132.90
  5. Step 5: Solve for x
    x = 6,715,066,132.90/117,123.60
  6. Step 6: Final answer
    x = 57,333.16

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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.