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Finding the Fourth Proportional to 110,891, 153,030.66 and 60,590

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Solution

The fourth proportional to 110,891, 153,030.66 and 60,590 is: 83,614.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,891 : 153,030.66 = 60,590 : x
  2. Step 2: Convert to fraction form
    110,891/153,030.66 = 60,590/x
  3. Step 3: Cross multiply
    110,891x = 153,030.66 × 60,590
  4. Step 4: Simplify right side
    110,891x = 9,272,127,689.40
  5. Step 5: Solve for x
    x = 9,272,127,689.40/110,891
  6. Step 6: Final answer
    x = 83,614.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.