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Finding the Fourth Proportional to 124,051.60, 186,077.40 and 64,905.40

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Solution

The fourth proportional to 124,051.60, 186,077.40 and 64,905.40 is: 97,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,051.60 : 186,077.40 = 64,905.40 : x
  2. Step 2: Convert to fraction form
    124,051.60/186,077.40 = 64,905.40/x
  3. Step 3: Cross multiply
    124,051.60x = 186,077.40 × 64,905.40
  4. Step 4: Simplify right side
    124,051.60x = 12,077,428,077.96
  5. Step 5: Solve for x
    x = 12,077,428,077.96/124,051.60
  6. Step 6: Final answer
    x = 97,358.10

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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.