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Finding the Fourth Proportional to 68,053.34, 101,420.69 and 64,510.40

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Solution

The fourth proportional to 68,053.34, 101,420.69 and 64,510.40 is: 96,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,053.34 : 101,420.69 = 64,510.40 : x
  2. Step 2: Convert to fraction form
    68,053.34/101,420.69 = 64,510.40/x
  3. Step 3: Cross multiply
    68,053.34x = 101,420.69 × 64,510.40
  4. Step 4: Simplify right side
    68,053.34x = 6,542,689,026.62
  5. Step 5: Solve for x
    x = 6,542,689,026.62/68,053.34
  6. Step 6: Final answer
    x = 96,140.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.