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Finding the Fourth Proportional to 210,925.67, 316,323.31 and 61,176.98

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Solution

The fourth proportional to 210,925.67, 316,323.31 and 61,176.98 is: 91,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,925.67 : 316,323.31 = 61,176.98 : x
  2. Step 2: Convert to fraction form
    210,925.67/316,323.31 = 61,176.98/x
  3. Step 3: Cross multiply
    210,925.67x = 316,323.31 × 61,176.98
  4. Step 4: Simplify right side
    210,925.67x = 19,351,704,809.40
  5. Step 5: Solve for x
    x = 19,351,704,809.40/210,925.67
  6. Step 6: Final answer
    x = 91,746.56

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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.