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Finding the Fourth Proportional to 143,374.34, 215,061.52 and 43,534.10

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Solution

The fourth proportional to 143,374.34, 215,061.52 and 43,534.10 is: 65,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,374.34 : 215,061.52 = 43,534.10 : x
  2. Step 2: Convert to fraction form
    143,374.34/215,061.52 = 43,534.10/x
  3. Step 3: Cross multiply
    143,374.34x = 215,061.52 × 43,534.10
  4. Step 4: Simplify right side
    143,374.34x = 9,362,509,717.83
  5. Step 5: Solve for x
    x = 9,362,509,717.83/143,374.34
  6. Step 6: Final answer
    x = 65,301.15

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1.5x scale

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.