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Finding the Fourth Proportional to 104,776.59, 144,594.81 and 64,513.58

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Solution

The fourth proportional to 104,776.59, 144,594.81 and 64,513.58 is: 89,030.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,776.59 : 144,594.81 = 64,513.58 : x
  2. Step 2: Convert to fraction form
    104,776.59/144,594.81 = 64,513.58/x
  3. Step 3: Cross multiply
    104,776.59x = 144,594.81 × 64,513.58
  4. Step 4: Simplify right side
    104,776.59x = 9,328,328,842.52
  5. Step 5: Solve for x
    x = 9,328,328,842.52/104,776.59
  6. Step 6: Final answer
    x = 89,030.66

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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.