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Finding the Fourth Proportional to 156,547.54, 216,035.68 and 84,927.55

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Solution

The fourth proportional to 156,547.54, 216,035.68 and 84,927.55 is: 117,200.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,547.54 : 216,035.68 = 84,927.55 : x
  2. Step 2: Convert to fraction form
    156,547.54/216,035.68 = 84,927.55/x
  3. Step 3: Cross multiply
    156,547.54x = 216,035.68 × 84,927.55
  4. Step 4: Simplify right side
    156,547.54x = 18,347,381,369.54
  5. Step 5: Solve for x
    x = 18,347,381,369.54/156,547.54
  6. Step 6: Final answer
    x = 117,200.07

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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.