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Finding the Fourth Proportional to 134,977.88, 186,265.88 and 74,547.22

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Solution

The fourth proportional to 134,977.88, 186,265.88 and 74,547.22 is: 102,873.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,977.88 : 186,265.88 = 74,547.22 : x
  2. Step 2: Convert to fraction form
    134,977.88/186,265.88 = 74,547.22/x
  3. Step 3: Cross multiply
    134,977.88x = 186,265.88 × 74,547.22
  4. Step 4: Simplify right side
    134,977.88x = 13,885,603,534.85
  5. Step 5: Solve for x
    x = 13,885,603,534.85/134,977.88
  6. Step 6: Final answer
    x = 102,873.18

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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.