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Finding the Fourth Proportional to 191,703.92, 286,928.76 and 141,089.36

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Solution

The fourth proportional to 191,703.92, 286,928.76 and 141,089.36 is: 211,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,703.92 : 286,928.76 = 141,089.36 : x
  2. Step 2: Convert to fraction form
    191,703.92/286,928.76 = 141,089.36/x
  3. Step 3: Cross multiply
    191,703.92x = 286,928.76 × 141,089.36
  4. Step 4: Simplify right side
    191,703.92x = 40,482,595,113.99
  5. Step 5: Solve for x
    x = 40,482,595,113.99/191,703.92
  6. Step 6: Final answer
    x = 211,172.50

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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.