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Finding the Fourth Proportional to 172,368.33, 237,672.14 and 121,364.74

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Solution

The fourth proportional to 172,368.33, 237,672.14 and 121,364.74 is: 167,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368.33 : 237,672.14 = 121,364.74 : x
  2. Step 2: Convert to fraction form
    172,368.33/237,672.14 = 121,364.74/x
  3. Step 3: Cross multiply
    172,368.33x = 237,672.14 × 121,364.74
  4. Step 4: Simplify right side
    172,368.33x = 28,845,017,476.34
  5. Step 5: Solve for x
    x = 28,845,017,476.34/172,368.33
  6. Step 6: Final answer
    x = 167,345.23

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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.