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Finding the Fourth Proportional to 98,550.99, 136,000.50 and 56,109.51

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Solution

The fourth proportional to 98,550.99, 136,000.50 and 56,109.51 is: 77,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,550.99 : 136,000.50 = 56,109.51 : x
  2. Step 2: Convert to fraction form
    98,550.99/136,000.50 = 56,109.51/x
  3. Step 3: Cross multiply
    98,550.99x = 136,000.50 × 56,109.51
  4. Step 4: Simplify right side
    98,550.99x = 7,630,921,414.76
  5. Step 5: Solve for x
    x = 7,630,921,414.76/98,550.99
  6. Step 6: Final answer
    x = 77,431.20

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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.