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Finding the Fourth Proportional to 152,630.99, 210,643.70 and 84,669.86

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Solution

The fourth proportional to 152,630.99, 210,643.70 and 84,669.86 is: 116,851.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,630.99 : 210,643.70 = 84,669.86 : x
  2. Step 2: Convert to fraction form
    152,630.99/210,643.70 = 84,669.86/x
  3. Step 3: Cross multiply
    152,630.99x = 210,643.70 × 84,669.86
  4. Step 4: Simplify right side
    152,630.99x = 17,835,172,588.88
  5. Step 5: Solve for x
    x = 17,835,172,588.88/152,630.99
  6. Step 6: Final answer
    x = 116,851.58

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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.