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Finding the Fourth Proportional to 118,752.24, 178,128.36 and 48,603

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Solution

The fourth proportional to 118,752.24, 178,128.36 and 48,603 is: 72,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,752.24 : 178,128.36 = 48,603 : x
  2. Step 2: Convert to fraction form
    118,752.24/178,128.36 = 48,603/x
  3. Step 3: Cross multiply
    118,752.24x = 178,128.36 × 48,603
  4. Step 4: Simplify right side
    118,752.24x = 8,657,572,681.08
  5. Step 5: Solve for x
    x = 8,657,572,681.08/118,752.24
  6. Step 6: Final answer
    x = 72,904.50

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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.