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Finding the Fourth Proportional to 99,070.77, 148,491.71 and 45,651.06

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Solution

The fourth proportional to 99,070.77, 148,491.71 and 45,651.06 is: 68,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,070.77 : 148,491.71 = 45,651.06 : x
  2. Step 2: Convert to fraction form
    99,070.77/148,491.71 = 45,651.06/x
  3. Step 3: Cross multiply
    99,070.77x = 148,491.71 × 45,651.06
  4. Step 4: Simplify right side
    99,070.77x = 6,778,802,992.00
  5. Step 5: Solve for x
    x = 6,778,802,992.00/99,070.77
  6. Step 6: Final answer
    x = 68,423.85

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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.