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Finding the Fourth Proportional to 153,365.60, 230,059.20 and 86,837.60

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Solution

The fourth proportional to 153,365.60, 230,059.20 and 86,837.60 is: 130,262.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,365.60 : 230,059.20 = 86,837.60 : x
  2. Step 2: Convert to fraction form
    153,365.60/230,059.20 = 86,837.60/x
  3. Step 3: Cross multiply
    153,365.60x = 230,059.20 × 86,837.60
  4. Step 4: Simplify right side
    153,365.60x = 19,977,788,785.92
  5. Step 5: Solve for x
    x = 19,977,788,785.92/153,365.60
  6. Step 6: Final answer
    x = 130,262.52

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1.5x scale

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.