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Finding the Fourth Proportional to 124,077.40, 186,116.10 and 49,215.40

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Solution

The fourth proportional to 124,077.40, 186,116.10 and 49,215.40 is: 73,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,077.40 : 186,116.10 = 49,215.40 : x
  2. Step 2: Convert to fraction form
    124,077.40/186,116.10 = 49,215.40/x
  3. Step 3: Cross multiply
    124,077.40x = 186,116.10 × 49,215.40
  4. Step 4: Simplify right side
    124,077.40x = 9,159,778,307.94
  5. Step 5: Solve for x
    x = 9,159,778,307.94/124,077.40
  6. Step 6: Final answer
    x = 73,823.10

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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.