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Finding the Fourth Proportional to 153,470.40, 230,236.98 and 64,723.98

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Solution

The fourth proportional to 153,470.40, 230,236.98 and 64,723.98 is: 97,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,470.40 : 230,236.98 = 64,723.98 : x
  2. Step 2: Convert to fraction form
    153,470.40/230,236.98 = 64,723.98/x
  3. Step 3: Cross multiply
    153,470.40x = 230,236.98 × 64,723.98
  4. Step 4: Simplify right side
    153,470.40x = 14,901,853,688.78
  5. Step 5: Solve for x
    x = 14,901,853,688.78/153,470.40
  6. Step 6: Final answer
    x = 97,099.20

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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.