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Finding the Fourth Proportional to 98,954.40, 136,554.48 and 53,630.40

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Solution

The fourth proportional to 98,954.40, 136,554.48 and 53,630.40 is: 74,008.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,954.40 : 136,554.48 = 53,630.40 : x
  2. Step 2: Convert to fraction form
    98,954.40/136,554.48 = 53,630.40/x
  3. Step 3: Cross multiply
    98,954.40x = 136,554.48 × 53,630.40
  4. Step 4: Simplify right side
    98,954.40x = 7,323,471,384.19
  5. Step 5: Solve for x
    x = 7,323,471,384.19/98,954.40
  6. Step 6: Final answer
    x = 74,008.55

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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.