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Finding the Fourth Proportional to 216,707.38, 299,056.18 and 141,255.88

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Solution

The fourth proportional to 216,707.38, 299,056.18 and 141,255.88 is: 194,933.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,707.38 : 299,056.18 = 141,255.88 : x
  2. Step 2: Convert to fraction form
    216,707.38/299,056.18 = 141,255.88/x
  3. Step 3: Cross multiply
    216,707.38x = 299,056.18 × 141,255.88
  4. Step 4: Simplify right side
    216,707.38x = 42,243,443,875.34
  5. Step 5: Solve for x
    x = 42,243,443,875.34/216,707.38
  6. Step 6: Final answer
    x = 194,933.11

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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.