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Finding the Fourth Proportional to 153,011.87, 211,181.43 and 127,477.74

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Solution

The fourth proportional to 153,011.87, 211,181.43 and 127,477.74 is: 175,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,011.87 : 211,181.43 = 127,477.74 : x
  2. Step 2: Convert to fraction form
    153,011.87/211,181.43 = 127,477.74/x
  3. Step 3: Cross multiply
    153,011.87x = 211,181.43 × 127,477.74
  4. Step 4: Simplify right side
    153,011.87x = 26,920,931,426.37
  5. Step 5: Solve for x
    x = 26,920,931,426.37/153,011.87
  6. Step 6: Final answer
    x = 175,940.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.