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Finding the Fourth Proportional to 99,303.59, 148,871.42 and 43,101.46

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Solution

The fourth proportional to 99,303.59, 148,871.42 and 43,101.46 is: 64,615.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,303.59 : 148,871.42 = 43,101.46 : x
  2. Step 2: Convert to fraction form
    99,303.59/148,871.42 = 43,101.46/x
  3. Step 3: Cross multiply
    99,303.59x = 148,871.42 × 43,101.46
  4. Step 4: Simplify right side
    99,303.59x = 6,416,574,594.41
  5. Step 5: Solve for x
    x = 6,416,574,594.41/99,303.59
  6. Step 6: Final answer
    x = 64,615.74

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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.