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Finding the Fourth Proportional to 86,898.52, 130,397.04 and 46,916.96

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Solution

The fourth proportional to 86,898.52, 130,397.04 and 46,916.96 is: 70,402.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,898.52 : 130,397.04 = 46,916.96 : x
  2. Step 2: Convert to fraction form
    86,898.52/130,397.04 = 46,916.96/x
  3. Step 3: Cross multiply
    86,898.52x = 130,397.04 × 46,916.96
  4. Step 4: Simplify right side
    86,898.52x = 6,117,832,709.80
  5. Step 5: Solve for x
    x = 6,117,832,709.80/86,898.52
  6. Step 6: Final answer
    x = 70,402.04

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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.