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Finding the Fourth Proportional to 355,532.75, 533,349.72 and 115,569.51

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Solution

The fourth proportional to 355,532.75, 533,349.72 and 115,569.51 is: 173,370.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,532.75 : 533,349.72 = 115,569.51 : x
  2. Step 2: Convert to fraction form
    355,532.75/533,349.72 = 115,569.51/x
  3. Step 3: Cross multiply
    355,532.75x = 533,349.72 × 115,569.51
  4. Step 4: Simplify right side
    355,532.75x = 61,638,963,798.98
  5. Step 5: Solve for x
    x = 61,638,963,798.98/355,532.75
  6. Step 6: Final answer
    x = 173,370.71

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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.