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Finding the Fourth Proportional to 211,888.50, 292,432.08 and 122,464.50

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Solution

The fourth proportional to 211,888.50, 292,432.08 and 122,464.50 is: 169,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,888.50 : 292,432.08 = 122,464.50 : x
  2. Step 2: Convert to fraction form
    211,888.50/292,432.08 = 122,464.50/x
  3. Step 3: Cross multiply
    211,888.50x = 292,432.08 × 122,464.50
  4. Step 4: Simplify right side
    211,888.50x = 35,812,548,461.16
  5. Step 5: Solve for x
    x = 35,812,548,461.16/211,888.50
  6. Step 6: Final answer
    x = 169,016.01

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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.