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Finding the Fourth Proportional to 104,680.98, 144,455.60 and 56,934.32

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Solution

The fourth proportional to 104,680.98, 144,455.60 and 56,934.32 is: 78,567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,680.98 : 144,455.60 = 56,934.32 : x
  2. Step 2: Convert to fraction form
    104,680.98/144,455.60 = 56,934.32/x
  3. Step 3: Cross multiply
    104,680.98x = 144,455.60 × 56,934.32
  4. Step 4: Simplify right side
    104,680.98x = 8,224,480,776.25
  5. Step 5: Solve for x
    x = 8,224,480,776.25/104,680.98
  6. Step 6: Final answer
    x = 78,567.10

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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.