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Finding the Fourth Proportional to 147,123.40, 220,685.10 and 48,627.40

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Solution

The fourth proportional to 147,123.40, 220,685.10 and 48,627.40 is: 72,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,123.40 : 220,685.10 = 48,627.40 : x
  2. Step 2: Convert to fraction form
    147,123.40/220,685.10 = 48,627.40/x
  3. Step 3: Cross multiply
    147,123.40x = 220,685.10 × 48,627.40
  4. Step 4: Simplify right side
    147,123.40x = 10,731,342,631.74
  5. Step 5: Solve for x
    x = 10,731,342,631.74/147,123.40
  6. Step 6: Final answer
    x = 72,941.10

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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.