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Finding the Fourth Proportional to 140,988.40, 211,492.20 and 41,148.40

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Solution

The fourth proportional to 140,988.40, 211,492.20 and 41,148.40 is: 61,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,988.40 : 211,492.20 = 41,148.40 : x
  2. Step 2: Convert to fraction form
    140,988.40/211,492.20 = 41,148.40/x
  3. Step 3: Cross multiply
    140,988.40x = 211,492.20 × 41,148.40
  4. Step 4: Simplify right side
    140,988.40x = 8,702,565,642.48
  5. Step 5: Solve for x
    x = 8,702,565,642.48/140,988.40
  6. Step 6: Final answer
    x = 61,725.40

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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.