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Finding the Fourth Proportional to 152,922.88, 210,907.20 and 92,490.88

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Solution

The fourth proportional to 152,922.88, 210,907.20 and 92,490.88 is: 127,560.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,922.88 : 210,907.20 = 92,490.88 : x
  2. Step 2: Convert to fraction form
    152,922.88/210,907.20 = 92,490.88/x
  3. Step 3: Cross multiply
    152,922.88x = 210,907.20 × 92,490.88
  4. Step 4: Simplify right side
    152,922.88x = 19,506,992,526.34
  5. Step 5: Solve for x
    x = 19,506,992,526.34/152,922.88
  6. Step 6: Final answer
    x = 127,560.98

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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.