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Finding the Fourth Proportional to 99,285.60, 148,928.40 and 59,822.40

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Solution

The fourth proportional to 99,285.60, 148,928.40 and 59,822.40 is: 89,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,285.60 : 148,928.40 = 59,822.40 : x
  2. Step 2: Convert to fraction form
    99,285.60/148,928.40 = 59,822.40/x
  3. Step 3: Cross multiply
    99,285.60x = 148,928.40 × 59,822.40
  4. Step 4: Simplify right side
    99,285.60x = 8,909,254,316.16
  5. Step 5: Solve for x
    x = 8,909,254,316.16/99,285.60
  6. Step 6: Final answer
    x = 89,733.60

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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.