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Finding the Fourth Proportional to 163,417.51, 225,538.86 and 91,802.98

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Solution

The fourth proportional to 163,417.51, 225,538.86 and 91,802.98 is: 126,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,417.51 : 225,538.86 = 91,802.98 : x
  2. Step 2: Convert to fraction form
    163,417.51/225,538.86 = 91,802.98/x
  3. Step 3: Cross multiply
    163,417.51x = 225,538.86 × 91,802.98
  4. Step 4: Simplify right side
    163,417.51x = 20,705,139,453.80
  5. Step 5: Solve for x
    x = 20,705,139,453.80/163,417.51
  6. Step 6: Final answer
    x = 126,700.86

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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.