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Finding the Fourth Proportional to 207,290.84, 310,437.98 and 118,274.47

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Solution

The fourth proportional to 207,290.84, 310,437.98 and 118,274.47 is: 177,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,290.84 : 310,437.98 = 118,274.47 : x
  2. Step 2: Convert to fraction form
    207,290.84/310,437.98 = 118,274.47/x
  3. Step 3: Cross multiply
    207,290.84x = 310,437.98 × 118,274.47
  4. Step 4: Simplify right side
    207,290.84x = 36,716,886,184.90
  5. Step 5: Solve for x
    x = 36,716,886,184.90/207,290.84
  6. Step 6: Final answer
    x = 177,127.40

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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.