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Finding the Fourth Proportional to 163,275.84, 225,303.35 and 91,663.74

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Solution

The fourth proportional to 163,275.84, 225,303.35 and 91,663.74 is: 126,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,275.84 : 225,303.35 = 91,663.74 : x
  2. Step 2: Convert to fraction form
    163,275.84/225,303.35 = 91,663.74/x
  3. Step 3: Cross multiply
    163,275.84x = 225,303.35 × 91,663.74
  4. Step 4: Simplify right side
    163,275.84x = 20,652,147,237.21
  5. Step 5: Solve for x
    x = 20,652,147,237.21/163,275.84
  6. Step 6: Final answer
    x = 126,486.24

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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.