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Finding the Fourth Proportional to 211,871.40, 292,374.68 and 116,372.40

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Solution

The fourth proportional to 211,871.40, 292,374.68 and 116,372.40 is: 160,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,871.40 : 292,374.68 = 116,372.40 : x
  2. Step 2: Convert to fraction form
    211,871.40/292,374.68 = 116,372.40/x
  3. Step 3: Cross multiply
    211,871.40x = 292,374.68 × 116,372.40
  4. Step 4: Simplify right side
    211,871.40x = 34,024,343,210.83
  5. Step 5: Solve for x
    x = 34,024,343,210.83/211,871.40
  6. Step 6: Final answer
    x = 160,589.60

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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.