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Finding the Fourth Proportional to 60,663,774.80, 90,995,662.20 and 40,256,440.40

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Solution

The fourth proportional to 60,663,774.80, 90,995,662.20 and 40,256,440.40 is: 60,384,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,663,774.80 : 90,995,662.20 = 40,256,440.40 : x
  2. Step 2: Convert to fraction form
    60,663,774.80/90,995,662.20 = 40,256,440.40/x
  3. Step 3: Cross multiply
    60,663,774.80x = 90,995,662.20 × 40,256,440.40
  4. Step 4: Simplify right side
    60,663,774.80x = 3,663,161,452,012,833
  5. Step 5: Solve for x
    x = 3,663,161,452,012,833/60,663,774.80
  6. Step 6: Final answer
    x = 60,384,660.60

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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.