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Finding the Fourth Proportional to 104,666.60, 144,438.55 and 56,918.92

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Solution

The fourth proportional to 104,666.60, 144,438.55 and 56,918.92 is: 78,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,666.60 : 144,438.55 = 56,918.92 : x
  2. Step 2: Convert to fraction form
    104,666.60/144,438.55 = 56,918.92/x
  3. Step 3: Cross multiply
    104,666.60x = 144,438.55 × 56,918.92
  4. Step 4: Simplify right side
    104,666.60x = 8,221,286,272.37
  5. Step 5: Solve for x
    x = 8,221,286,272.37/104,666.60
  6. Step 6: Final answer
    x = 78,547.37

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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.