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Finding the Fourth Proportional to 151,363.49, 208,865.90 and 93,210.98

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Solution

The fourth proportional to 151,363.49, 208,865.90 and 93,210.98 is: 128,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,363.49 : 208,865.90 = 93,210.98 : x
  2. Step 2: Convert to fraction form
    151,363.49/208,865.90 = 93,210.98/x
  3. Step 3: Cross multiply
    151,363.49x = 208,865.90 × 93,210.98
  4. Step 4: Simplify right side
    151,363.49x = 19,468,593,717.20
  5. Step 5: Solve for x
    x = 19,468,593,717.20/151,363.49
  6. Step 6: Final answer
    x = 128,621.47

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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.