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Finding the Fourth Proportional to 145,493.74, 200,717.76 and 88,871.50

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Solution

The fourth proportional to 145,493.74, 200,717.76 and 88,871.50 is: 122,603.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,493.74 : 200,717.76 = 88,871.50 : x
  2. Step 2: Convert to fraction form
    145,493.74/200,717.76 = 88,871.50/x
  3. Step 3: Cross multiply
    145,493.74x = 200,717.76 × 88,871.50
  4. Step 4: Simplify right side
    145,493.74x = 17,838,088,407.84
  5. Step 5: Solve for x
    x = 17,838,088,407.84/145,493.74
  6. Step 6: Final answer
    x = 122,603.82

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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.