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Finding the Fourth Proportional to 104,575.53, 144,313.54 and 56,828.87

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Solution

The fourth proportional to 104,575.53, 144,313.54 and 56,828.87 is: 78,423.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,575.53 : 144,313.54 = 56,828.87 : x
  2. Step 2: Convert to fraction form
    104,575.53/144,313.54 = 56,828.87/x
  3. Step 3: Cross multiply
    104,575.53x = 144,313.54 × 56,828.87
  4. Step 4: Simplify right side
    104,575.53x = 8,201,175,119.76
  5. Step 5: Solve for x
    x = 8,201,175,119.76/104,575.53
  6. Step 6: Final answer
    x = 78,423.47

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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.