Home / 353,518.08-529,962.80-128,836.32

Finding the Fourth Proportional to 353,518.08, 529,962.80 and 128,836.32

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Solution

The fourth proportional to 353,518.08, 529,962.80 and 128,836.32 is: 193,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,518.08 : 529,962.80 = 128,836.32 : x
  2. Step 2: Convert to fraction form
    353,518.08/529,962.80 = 128,836.32/x
  3. Step 3: Cross multiply
    353,518.08x = 529,962.80 × 128,836.32
  4. Step 4: Simplify right side
    353,518.08x = 68,278,456,888.90
  5. Step 5: Solve for x
    x = 68,278,456,888.90/353,518.08
  6. Step 6: Final answer
    x = 193,139.93

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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.