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Finding the Fourth Proportional to 104,930.60, 157,434.30 and 42,607.40

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Solution

The fourth proportional to 104,930.60, 157,434.30 and 42,607.40 is: 63,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,930.60 : 157,434.30 = 42,607.40 : x
  2. Step 2: Convert to fraction form
    104,930.60/157,434.30 = 42,607.40/x
  3. Step 3: Cross multiply
    104,930.60x = 157,434.30 × 42,607.40
  4. Step 4: Simplify right side
    104,930.60x = 6,707,866,193.82
  5. Step 5: Solve for x
    x = 6,707,866,193.82/104,930.60
  6. Step 6: Final answer
    x = 63,926.69

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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.