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Finding the Fourth Proportional to 113,877.60, 170,816.40 and 102,818.40

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Solution

The fourth proportional to 113,877.60, 170,816.40 and 102,818.40 is: 154,227.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,877.60 : 170,816.40 = 102,818.40 : x
  2. Step 2: Convert to fraction form
    113,877.60/170,816.40 = 102,818.40/x
  3. Step 3: Cross multiply
    113,877.60x = 170,816.40 × 102,818.40
  4. Step 4: Simplify right side
    113,877.60x = 17,563,068,941.76
  5. Step 5: Solve for x
    x = 17,563,068,941.76/113,877.60
  6. Step 6: Final answer
    x = 154,227.60

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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.