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Finding the Fourth Proportional to 94,122, 129,881.88 and 51,671.76

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Solution

The fourth proportional to 94,122, 129,881.88 and 51,671.76 is: 71,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,122 : 129,881.88 = 51,671.76 : x
  2. Step 2: Convert to fraction form
    94,122/129,881.88 = 51,671.76/x
  3. Step 3: Cross multiply
    94,122x = 129,881.88 × 51,671.76
  4. Step 4: Simplify right side
    94,122x = 6,711,225,331.71
  5. Step 5: Solve for x
    x = 6,711,225,331.71/94,122
  6. Step 6: Final answer
    x = 71,303.47

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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.