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Finding the Fourth Proportional to 163,888.32, 246,026.88 and 137,916.48

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Solution

The fourth proportional to 163,888.32, 246,026.88 and 137,916.48 is: 207,038.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,888.32 : 246,026.88 = 137,916.48 : x
  2. Step 2: Convert to fraction form
    163,888.32/246,026.88 = 137,916.48/x
  3. Step 3: Cross multiply
    163,888.32x = 246,026.88 × 137,916.48
  4. Step 4: Simplify right side
    163,888.32x = 33,931,161,274.98
  5. Step 5: Solve for x
    x = 33,931,161,274.98/163,888.32
  6. Step 6: Final answer
    x = 207,038.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.