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Finding the Fourth Proportional to 242,611.19, 334,804.78 and 140,697.08

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Solution

The fourth proportional to 242,611.19, 334,804.78 and 140,697.08 is: 194,162.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,611.19 : 334,804.78 = 140,697.08 : x
  2. Step 2: Convert to fraction form
    242,611.19/334,804.78 = 140,697.08/x
  3. Step 3: Cross multiply
    242,611.19x = 334,804.78 × 140,697.08
  4. Step 4: Simplify right side
    242,611.19x = 47,106,054,501.20
  5. Step 5: Solve for x
    x = 47,106,054,501.20/242,611.19
  6. Step 6: Final answer
    x = 194,162.74

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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.