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Finding the Fourth Proportional to 103,070.70, 154,490.85 and 58,718.70

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Solution

The fourth proportional to 103,070.70, 154,490.85 and 58,718.70 is: 88,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,070.70 : 154,490.85 = 58,718.70 : x
  2. Step 2: Convert to fraction form
    103,070.70/154,490.85 = 58,718.70/x
  3. Step 3: Cross multiply
    103,070.70x = 154,490.85 × 58,718.70
  4. Step 4: Simplify right side
    103,070.70x = 9,071,501,873.90
  5. Step 5: Solve for x
    x = 9,071,501,873.90/103,070.70
  6. Step 6: Final answer
    x = 88,012.42

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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.