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Finding the Fourth Proportional to 176,681.70, 243,827.16 and 101,244.78

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Solution

The fourth proportional to 176,681.70, 243,827.16 and 101,244.78 is: 139,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,681.70 : 243,827.16 = 101,244.78 : x
  2. Step 2: Convert to fraction form
    176,681.70/243,827.16 = 101,244.78/x
  3. Step 3: Cross multiply
    176,681.70x = 243,827.16 × 101,244.78
  4. Step 4: Simplify right side
    176,681.70x = 24,686,227,172.22
  5. Step 5: Solve for x
    x = 24,686,227,172.22/176,681.70
  6. Step 6: Final answer
    x = 139,721.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.