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Finding the Fourth Proportional to 111,417.52, 153,741.36 and 63,026.05

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Solution

The fourth proportional to 111,417.52, 153,741.36 and 63,026.05 is: 86,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,417.52 : 153,741.36 = 63,026.05 : x
  2. Step 2: Convert to fraction form
    111,417.52/153,741.36 = 63,026.05/x
  3. Step 3: Cross multiply
    111,417.52x = 153,741.36 × 63,026.05
  4. Step 4: Simplify right side
    111,417.52x = 9,689,710,642.43
  5. Step 5: Solve for x
    x = 9,689,710,642.43/111,417.52
  6. Step 6: Final answer
    x = 86,967.57

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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.