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Finding the Fourth Proportional to 104,053.69, 143,595.12 and 56,308.07

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Solution

The fourth proportional to 104,053.69, 143,595.12 and 56,308.07 is: 77,705.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,053.69 : 143,595.12 = 56,308.07 : x
  2. Step 2: Convert to fraction form
    104,053.69/143,595.12 = 56,308.07/x
  3. Step 3: Cross multiply
    104,053.69x = 143,595.12 × 56,308.07
  4. Step 4: Simplify right side
    104,053.69x = 8,085,563,631.09
  5. Step 5: Solve for x
    x = 8,085,563,631.09/104,053.69
  6. Step 6: Final answer
    x = 77,705.69

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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.