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Finding the Fourth Proportional to 118,300.48, 163,252.12 and 64,582.88

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Solution

The fourth proportional to 118,300.48, 163,252.12 and 64,582.88 is: 89,122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,300.48 : 163,252.12 = 64,582.88 : x
  2. Step 2: Convert to fraction form
    118,300.48/163,252.12 = 64,582.88/x
  3. Step 3: Cross multiply
    118,300.48x = 163,252.12 × 64,582.88
  4. Step 4: Simplify right side
    118,300.48x = 10,543,292,075.71
  5. Step 5: Solve for x
    x = 10,543,292,075.71/118,300.48
  6. Step 6: Final answer
    x = 89,122.99

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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.