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Finding the Fourth Proportional to 191,420.00, 287,128.04 and 49,264.72

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Solution

The fourth proportional to 191,420.00, 287,128.04 and 49,264.72 is: 73,896.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,420.00 : 287,128.04 = 49,264.72 : x
  2. Step 2: Convert to fraction form
    191,420.00/287,128.04 = 49,264.72/x
  3. Step 3: Cross multiply
    191,420.00x = 287,128.04 × 49,264.72
  4. Step 4: Simplify right side
    191,420.00x = 14,145,281,900.09
  5. Step 5: Solve for x
    x = 14,145,281,900.09/191,420.00
  6. Step 6: Final answer
    x = 73,896.57

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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.