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Finding the Fourth Proportional to 96,643.20, 130,053.60 and 96,643.20

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Solution

The fourth proportional to 96,643.20, 130,053.60 and 96,643.20 is: 130,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,643.20 : 130,053.60 = 96,643.20 : x
  2. Step 2: Convert to fraction form
    96,643.20/130,053.60 = 96,643.20/x
  3. Step 3: Cross multiply
    96,643.20x = 130,053.60 × 96,643.20
  4. Step 4: Simplify right side
    96,643.20x = 12,568,796,075.52
  5. Step 5: Solve for x
    x = 12,568,796,075.52/96,643.20
  6. Step 6: Final answer
    x = 130,053.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.