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Finding the Fourth Proportional to 98,836.64, 148,148.59 and 42,703.32

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Solution

The fourth proportional to 98,836.64, 148,148.59 and 42,703.32 is: 64,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,836.64 : 148,148.59 = 42,703.32 : x
  2. Step 2: Convert to fraction form
    98,836.64/148,148.59 = 42,703.32/x
  3. Step 3: Cross multiply
    98,836.64x = 148,148.59 × 42,703.32
  4. Step 4: Simplify right side
    98,836.64x = 6,326,436,646.32
  5. Step 5: Solve for x
    x = 6,326,436,646.32/98,836.64
  6. Step 6: Final answer
    x = 64,009.02

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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.