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Finding the Fourth Proportional to 125,156.49, 172,881.59 and 93,270.03

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Solution

The fourth proportional to 125,156.49, 172,881.59 and 93,270.03 is: 128,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,156.49 : 172,881.59 = 93,270.03 : x
  2. Step 2: Convert to fraction form
    125,156.49/172,881.59 = 93,270.03/x
  3. Step 3: Cross multiply
    125,156.49x = 172,881.59 × 93,270.03
  4. Step 4: Simplify right side
    125,156.49x = 16,124,670,619.40
  5. Step 5: Solve for x
    x = 16,124,670,619.40/125,156.49
  6. Step 6: Final answer
    x = 128,836.07

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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.