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Finding the Fourth Proportional to 81,594.48, 112,510.44 and 56,400.24

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Solution

The fourth proportional to 81,594.48, 112,510.44 and 56,400.24 is: 77,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,594.48 : 112,510.44 = 56,400.24 : x
  2. Step 2: Convert to fraction form
    81,594.48/112,510.44 = 56,400.24/x
  3. Step 3: Cross multiply
    81,594.48x = 112,510.44 × 56,400.24
  4. Step 4: Simplify right side
    81,594.48x = 6,345,615,818.51
  5. Step 5: Solve for x
    x = 6,345,615,818.51/81,594.48
  6. Step 6: Final answer
    x = 77,770.16

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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.