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Finding the Fourth Proportional to 161,903.33, 223,488.14 and 121,733.74

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Solution

The fourth proportional to 161,903.33, 223,488.14 and 121,733.74 is: 168,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,903.33 : 223,488.14 = 121,733.74 : x
  2. Step 2: Convert to fraction form
    161,903.33/223,488.14 = 121,733.74/x
  3. Step 3: Cross multiply
    161,903.33x = 223,488.14 × 121,733.74
  4. Step 4: Simplify right side
    161,903.33x = 27,206,047,127.84
  5. Step 5: Solve for x
    x = 27,206,047,127.84/161,903.33
  6. Step 6: Final answer
    x = 168,038.84

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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.