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Finding the Fourth Proportional to 127,677.47, 191,509.01 and 56,579.63

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Solution

The fourth proportional to 127,677.47, 191,509.01 and 56,579.63 is: 84,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,677.47 : 191,509.01 = 56,579.63 : x
  2. Step 2: Convert to fraction form
    127,677.47/191,509.01 = 56,579.63/x
  3. Step 3: Cross multiply
    127,677.47x = 191,509.01 × 56,579.63
  4. Step 4: Simplify right side
    127,677.47x = 10,835,508,644.57
  5. Step 5: Solve for x
    x = 10,835,508,644.57/127,677.47
  6. Step 6: Final answer
    x = 84,866.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.