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Finding the Fourth Proportional to 117,294.35, 175,941.72 and 28,547.91

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Solution

The fourth proportional to 117,294.35, 175,941.72 and 28,547.91 is: 42,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,294.35 : 175,941.72 = 28,547.91 : x
  2. Step 2: Convert to fraction form
    117,294.35/175,941.72 = 28,547.91/x
  3. Step 3: Cross multiply
    117,294.35x = 175,941.72 × 28,547.91
  4. Step 4: Simplify right side
    117,294.35x = 5,022,768,387.81
  5. Step 5: Solve for x
    x = 5,022,768,387.81/117,294.35
  6. Step 6: Final answer
    x = 42,821.91

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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.