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Finding the Fourth Proportional to 191,509.60, 287,264.40 and 51,282.40

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Solution

The fourth proportional to 191,509.60, 287,264.40 and 51,282.40 is: 76,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,509.60 : 287,264.40 = 51,282.40 : x
  2. Step 2: Convert to fraction form
    191,509.60/287,264.40 = 51,282.40/x
  3. Step 3: Cross multiply
    191,509.60x = 287,264.40 × 51,282.40
  4. Step 4: Simplify right side
    191,509.60x = 14,731,607,866.56
  5. Step 5: Solve for x
    x = 14,731,607,866.56/191,509.60
  6. Step 6: Final answer
    x = 76,923.60

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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.