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Finding the Fourth Proportional to 98,175.84, 147,242.64 and 28,036.32

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Solution

The fourth proportional to 98,175.84, 147,242.64 and 28,036.32 is: 42,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,175.84 : 147,242.64 = 28,036.32 : x
  2. Step 2: Convert to fraction form
    98,175.84/147,242.64 = 28,036.32/x
  3. Step 3: Cross multiply
    98,175.84x = 147,242.64 × 28,036.32
  4. Step 4: Simplify right side
    98,175.84x = 4,128,141,772.68
  5. Step 5: Solve for x
    x = 4,128,141,772.68/98,175.84
  6. Step 6: Final answer
    x = 42,048.45

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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.