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Finding the Fourth Proportional to 94,944, 142,381.95 and 28,371.72

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Solution

The fourth proportional to 94,944, 142,381.95 and 28,371.72 is: 42,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,944 : 142,381.95 = 28,371.72 : x
  2. Step 2: Convert to fraction form
    94,944/142,381.95 = 28,371.72/x
  3. Step 3: Cross multiply
    94,944x = 142,381.95 × 28,371.72
  4. Step 4: Simplify right side
    94,944x = 4,039,620,818.45
  5. Step 5: Solve for x
    x = 4,039,620,818.45/94,944
  6. Step 6: Final answer
    x = 42,547.40

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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.