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Finding the Fourth Proportional to 156,889.92, 216,539.60 and 93,215.48

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Solution

The fourth proportional to 156,889.92, 216,539.60 and 93,215.48 is: 128,656.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,889.92 : 216,539.60 = 93,215.48 : x
  2. Step 2: Convert to fraction form
    156,889.92/216,539.60 = 93,215.48/x
  3. Step 3: Cross multiply
    156,889.92x = 216,539.60 × 93,215.48
  4. Step 4: Simplify right side
    156,889.92x = 20,184,842,753.01
  5. Step 5: Solve for x
    x = 20,184,842,753.01/156,889.92
  6. Step 6: Final answer
    x = 128,656.08

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1.5x scale

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.