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Finding the Fourth Proportional to 104,150.99, 143,728.14 and 56,404.19

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Solution

The fourth proportional to 104,150.99, 143,728.14 and 56,404.19 is: 77,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,150.99 : 143,728.14 = 56,404.19 : x
  2. Step 2: Convert to fraction form
    104,150.99/143,728.14 = 56,404.19/x
  3. Step 3: Cross multiply
    104,150.99x = 143,728.14 × 56,404.19
  4. Step 4: Simplify right side
    104,150.99x = 8,106,868,598.27
  5. Step 5: Solve for x
    x = 8,106,868,598.27/104,150.99
  6. Step 6: Final answer
    x = 77,837.66

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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.