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Finding the Fourth Proportional to 223,897.38, 308,973.94 and 121,924.05

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Solution

The fourth proportional to 223,897.38, 308,973.94 and 121,924.05 is: 168,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,897.38 : 308,973.94 = 121,924.05 : x
  2. Step 2: Convert to fraction form
    223,897.38/308,973.94 = 121,924.05/x
  3. Step 3: Cross multiply
    223,897.38x = 308,973.94 × 121,924.05
  4. Step 4: Simplify right side
    223,897.38x = 37,671,354,109.26
  5. Step 5: Solve for x
    x = 37,671,354,109.26/223,897.38
  6. Step 6: Final answer
    x = 168,252.77

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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.