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Finding the Fourth Proportional to 92,670.61, 137,813.75 and 89,718.16

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Solution

The fourth proportional to 92,670.61, 137,813.75 and 89,718.16 is: 133,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,670.61 : 137,813.75 = 89,718.16 : x
  2. Step 2: Convert to fraction form
    92,670.61/137,813.75 = 89,718.16/x
  3. Step 3: Cross multiply
    92,670.61x = 137,813.75 × 89,718.16
  4. Step 4: Simplify right side
    92,670.61x = 12,364,395,624.11
  5. Step 5: Solve for x
    x = 12,364,395,624.11/92,670.61
  6. Step 6: Final answer
    x = 133,423.05

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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.