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Finding the Fourth Proportional to 155,762.08, 214,946.54 and 98,432.04

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Solution

The fourth proportional to 155,762.08, 214,946.54 and 98,432.04 is: 135,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,762.08 : 214,946.54 = 98,432.04 : x
  2. Step 2: Convert to fraction form
    155,762.08/214,946.54 = 98,432.04/x
  3. Step 3: Cross multiply
    155,762.08x = 214,946.54 × 98,432.04
  4. Step 4: Simplify right side
    155,762.08x = 21,157,626,423.14
  5. Step 5: Solve for x
    x = 21,157,626,423.14/155,762.08
  6. Step 6: Final answer
    x = 135,832.97

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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.