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Finding the Fourth Proportional to 109,365.09, 150,913.04 and 61,626.93

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Solution

The fourth proportional to 109,365.09, 150,913.04 and 61,626.93 is: 85,039.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,365.09 : 150,913.04 = 61,626.93 : x
  2. Step 2: Convert to fraction form
    109,365.09/150,913.04 = 61,626.93/x
  3. Step 3: Cross multiply
    109,365.09x = 150,913.04 × 61,626.93
  4. Step 4: Simplify right side
    109,365.09x = 9,300,307,044.03
  5. Step 5: Solve for x
    x = 9,300,307,044.03/109,365.09
  6. Step 6: Final answer
    x = 85,039.08

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1.5x scale

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.