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Finding the Fourth Proportional to 201,345.40, 302,019.90 and 61,104.02

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Solution

The fourth proportional to 201,345.40, 302,019.90 and 61,104.02 is: 91,656.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,345.40 : 302,019.90 = 61,104.02 : x
  2. Step 2: Convert to fraction form
    201,345.40/302,019.90 = 61,104.02/x
  3. Step 3: Cross multiply
    201,345.40x = 302,019.90 × 61,104.02
  4. Step 4: Simplify right side
    201,345.40x = 18,454,630,010.00
  5. Step 5: Solve for x
    x = 18,454,630,010.00/201,345.40
  6. Step 6: Final answer
    x = 91,656.58

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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.