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Finding the Fourth Proportional to 74,886.61, 112,274.43 and 35,397.58

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Solution

The fourth proportional to 74,886.61, 112,274.43 and 35,397.58 is: 53,070.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,886.61 : 112,274.43 = 35,397.58 : x
  2. Step 2: Convert to fraction form
    74,886.61/112,274.43 = 35,397.58/x
  3. Step 3: Cross multiply
    74,886.61x = 112,274.43 × 35,397.58
  4. Step 4: Simplify right side
    74,886.61x = 3,974,243,117.88
  5. Step 5: Solve for x
    x = 3,974,243,117.88/74,886.61
  6. Step 6: Final answer
    x = 53,070.14

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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.