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Finding the Fourth Proportional to 118,437.61, 163,436.95 and 64,723.04

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Solution

The fourth proportional to 118,437.61, 163,436.95 and 64,723.04 is: 89,314.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,437.61 : 163,436.95 = 64,723.04 : x
  2. Step 2: Convert to fraction form
    118,437.61/163,436.95 = 64,723.04/x
  3. Step 3: Cross multiply
    118,437.61x = 163,436.95 × 64,723.04
  4. Step 4: Simplify right side
    118,437.61x = 10,578,136,252.33
  5. Step 5: Solve for x
    x = 10,578,136,252.33/118,437.61
  6. Step 6: Final answer
    x = 89,314.00

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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.