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Finding the Fourth Proportional to 191,920.59, 287,880.89 and 98,366.67

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Solution

The fourth proportional to 191,920.59, 287,880.89 and 98,366.67 is: 147,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,920.59 : 287,880.89 = 98,366.67 : x
  2. Step 2: Convert to fraction form
    191,920.59/287,880.89 = 98,366.67/x
  3. Step 3: Cross multiply
    191,920.59x = 287,880.89 × 98,366.67
  4. Step 4: Simplify right side
    191,920.59x = 28,317,884,014.10
  5. Step 5: Solve for x
    x = 28,317,884,014.10/191,920.59
  6. Step 6: Final answer
    x = 147,550.01

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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.