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Finding the Fourth Proportional to 242,578.76, 363,851.08 and 90,746.87

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Solution

The fourth proportional to 242,578.76, 363,851.08 and 90,746.87 is: 136,113.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,578.76 : 363,851.08 = 90,746.87 : x
  2. Step 2: Convert to fraction form
    242,578.76/363,851.08 = 90,746.87/x
  3. Step 3: Cross multiply
    242,578.76x = 363,851.08 × 90,746.87
  4. Step 4: Simplify right side
    242,578.76x = 33,018,344,610.00
  5. Step 5: Solve for x
    x = 33,018,344,610.00/242,578.76
  6. Step 6: Final answer
    x = 136,113.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.