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Finding the Fourth Proportional to 104,778.99, 144,598.16 and 64,515.98

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Solution

The fourth proportional to 104,778.99, 144,598.16 and 64,515.98 is: 89,034.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,778.99 : 144,598.16 = 64,515.98 : x
  2. Step 2: Convert to fraction form
    104,778.99/144,598.16 = 64,515.98/x
  3. Step 3: Cross multiply
    104,778.99x = 144,598.16 × 64,515.98
  4. Step 4: Simplify right side
    104,778.99x = 9,328,892,521.38
  5. Step 5: Solve for x
    x = 9,328,892,521.38/104,778.99
  6. Step 6: Final answer
    x = 89,034.00

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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.