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Finding the Fourth Proportional to 272,970.60, 376,700.24 and 158,271.72

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Solution

The fourth proportional to 272,970.60, 376,700.24 and 158,271.72 is: 218,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,970.60 : 376,700.24 = 158,271.72 : x
  2. Step 2: Convert to fraction form
    272,970.60/376,700.24 = 158,271.72/x
  3. Step 3: Cross multiply
    272,970.60x = 376,700.24 × 158,271.72
  4. Step 4: Simplify right side
    272,970.60x = 59,620,994,909.21
  5. Step 5: Solve for x
    x = 59,620,994,909.21/272,970.60
  6. Step 6: Final answer
    x = 218,415.44

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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.