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Finding the Fourth Proportional to 210,908.60, 316,270.74 and 63,130.04

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Solution

The fourth proportional to 210,908.60, 316,270.74 and 63,130.04 is: 94,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,908.60 : 316,270.74 = 63,130.04 : x
  2. Step 2: Convert to fraction form
    210,908.60/316,270.74 = 63,130.04/x
  3. Step 3: Cross multiply
    210,908.60x = 316,270.74 × 63,130.04
  4. Step 4: Simplify right side
    210,908.60x = 19,966,184,467.03
  5. Step 5: Solve for x
    x = 19,966,184,467.03/210,908.60
  6. Step 6: Final answer
    x = 94,667.47

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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.