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Finding the Fourth Proportional to 153,719.25, 230,612.94 and 47,117.94

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Solution

The fourth proportional to 153,719.25, 230,612.94 and 47,117.94 is: 70,687.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,719.25 : 230,612.94 = 47,117.94 : x
  2. Step 2: Convert to fraction form
    153,719.25/230,612.94 = 47,117.94/x
  3. Step 3: Cross multiply
    153,719.25x = 230,612.94 × 47,117.94
  4. Step 4: Simplify right side
    153,719.25x = 10,866,006,670.14
  5. Step 5: Solve for x
    x = 10,866,006,670.14/153,719.25
  6. Step 6: Final answer
    x = 70,687.35

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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.