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Finding the Fourth Proportional to 99,201.60, 148,802.40 and 57,729.60

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Solution

The fourth proportional to 99,201.60, 148,802.40 and 57,729.60 is: 86,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,201.60 : 148,802.40 = 57,729.60 : x
  2. Step 2: Convert to fraction form
    99,201.60/148,802.40 = 57,729.60/x
  3. Step 3: Cross multiply
    99,201.60x = 148,802.40 × 57,729.60
  4. Step 4: Simplify right side
    99,201.60x = 8,590,303,031.04
  5. Step 5: Solve for x
    x = 8,590,303,031.04/99,201.60
  6. Step 6: Final answer
    x = 86,594.40

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