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Finding the Fourth Proportional to 179,346, 247,514.76 and 99,858

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Solution

The fourth proportional to 179,346, 247,514.76 and 99,858 is: 137,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,346 : 247,514.76 = 99,858 : x
  2. Step 2: Convert to fraction form
    179,346/247,514.76 = 99,858/x
  3. Step 3: Cross multiply
    179,346x = 247,514.76 × 99,858
  4. Step 4: Simplify right side
    179,346x = 24,716,328,904.08
  5. Step 5: Solve for x
    x = 24,716,328,904.08/179,346
  6. Step 6: Final answer
    x = 137,813.66

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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.