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Finding the Fourth Proportional to 99,292, 148,854.28 and 43,089.77

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Solution

The fourth proportional to 99,292, 148,854.28 and 43,089.77 is: 64,598.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,292 : 148,854.28 = 43,089.77 : x
  2. Step 2: Convert to fraction form
    99,292/148,854.28 = 43,089.77/x
  3. Step 3: Cross multiply
    99,292x = 148,854.28 × 43,089.77
  4. Step 4: Simplify right side
    99,292x = 6,414,096,688.72
  5. Step 5: Solve for x
    x = 6,414,096,688.72/99,292
  6. Step 6: Final answer
    x = 64,598.32

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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.