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Finding the Fourth Proportional to 151,875.84, 209,501.28 and 88,205.28

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Solution

The fourth proportional to 151,875.84, 209,501.28 and 88,205.28 is: 121,672.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,875.84 : 209,501.28 = 88,205.28 : x
  2. Step 2: Convert to fraction form
    151,875.84/209,501.28 = 88,205.28/x
  3. Step 3: Cross multiply
    151,875.84x = 209,501.28 × 88,205.28
  4. Step 4: Simplify right side
    151,875.84x = 18,479,119,062.76
  5. Step 5: Solve for x
    x = 18,479,119,062.76/151,875.84
  6. Step 6: Final answer
    x = 121,672.54

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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.