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Finding the Fourth Proportional to 191,437.95, 287,156.94 and 51,192.93

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Solution

The fourth proportional to 191,437.95, 287,156.94 and 51,192.93 is: 76,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,437.95 : 287,156.94 = 51,192.93 : x
  2. Step 2: Convert to fraction form
    191,437.95/287,156.94 = 51,192.93/x
  3. Step 3: Cross multiply
    191,437.95x = 287,156.94 × 51,192.93
  4. Step 4: Simplify right side
    191,437.95x = 14,700,405,128.43
  5. Step 5: Solve for x
    x = 14,700,405,128.43/191,437.95
  6. Step 6: Final answer
    x = 76,789.40

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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.