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Finding the Fourth Proportional to 164,856.60, 247,803.30 and 161,746.20

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Solution

The fourth proportional to 164,856.60, 247,803.30 and 161,746.20 is: 243,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,856.60 : 247,803.30 = 161,746.20 : x
  2. Step 2: Convert to fraction form
    164,856.60/247,803.30 = 161,746.20/x
  3. Step 3: Cross multiply
    164,856.60x = 247,803.30 × 161,746.20
  4. Step 4: Simplify right side
    164,856.60x = 40,081,242,122.46
  5. Step 5: Solve for x
    x = 40,081,242,122.46/164,856.60
  6. Step 6: Final answer
    x = 243,127.92

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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.