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Finding the Fourth Proportional to 88,712.40, 133,068.60 and 42,056.40

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Solution

The fourth proportional to 88,712.40, 133,068.60 and 42,056.40 is: 63,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,712.40 : 133,068.60 = 42,056.40 : x
  2. Step 2: Convert to fraction form
    88,712.40/133,068.60 = 42,056.40/x
  3. Step 3: Cross multiply
    88,712.40x = 133,068.60 × 42,056.40
  4. Step 4: Simplify right side
    88,712.40x = 5,596,386,269.04
  5. Step 5: Solve for x
    x = 5,596,386,269.04/88,712.40
  6. Step 6: Final answer
    x = 63,084.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.