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Finding the Fourth Proportional to 169,984.60, 254,631.30 and 86,925.40

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Solution

The fourth proportional to 169,984.60, 254,631.30 and 86,925.40 is: 130,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,984.60 : 254,631.30 = 86,925.40 : x
  2. Step 2: Convert to fraction form
    169,984.60/254,631.30 = 86,925.40/x
  3. Step 3: Cross multiply
    169,984.60x = 254,631.30 × 86,925.40
  4. Step 4: Simplify right side
    169,984.60x = 22,133,927,605.02
  5. Step 5: Solve for x
    x = 22,133,927,605.02/169,984.60
  6. Step 6: Final answer
    x = 130,211.37

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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.