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Finding the Fourth Proportional to 106,615.51, 147,138.06 and 61,308.22

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Solution

The fourth proportional to 106,615.51, 147,138.06 and 61,308.22 is: 84,610.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,615.51 : 147,138.06 = 61,308.22 : x
  2. Step 2: Convert to fraction form
    106,615.51/147,138.06 = 61,308.22/x
  3. Step 3: Cross multiply
    106,615.51x = 147,138.06 × 61,308.22
  4. Step 4: Simplify right side
    106,615.51x = 9,020,772,552.85
  5. Step 5: Solve for x
    x = 9,020,772,552.85/106,615.51
  6. Step 6: Final answer
    x = 84,610.32

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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.