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Finding the Fourth Proportional to 140,459.81, 210,718.87 and 46,963.13

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Solution

The fourth proportional to 140,459.81, 210,718.87 and 46,963.13 is: 70,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,459.81 : 210,718.87 = 46,963.13 : x
  2. Step 2: Convert to fraction form
    140,459.81/210,718.87 = 46,963.13/x
  3. Step 3: Cross multiply
    140,459.81x = 210,718.87 × 46,963.13
  4. Step 4: Simplify right side
    140,459.81x = 9,896,016,514.26
  5. Step 5: Solve for x
    x = 9,896,016,514.26/140,459.81
  6. Step 6: Final answer
    x = 70,454.44

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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.