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Finding the Fourth Proportional to 250,421.76, 375,281.64 and 116,985.60

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Solution

The fourth proportional to 250,421.76, 375,281.64 and 116,985.60 is: 175,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,421.76 : 375,281.64 = 116,985.60 : x
  2. Step 2: Convert to fraction form
    250,421.76/375,281.64 = 116,985.60/x
  3. Step 3: Cross multiply
    250,421.76x = 375,281.64 × 116,985.60
  4. Step 4: Simplify right side
    250,421.76x = 43,902,547,824.38
  5. Step 5: Solve for x
    x = 43,902,547,824.38/250,421.76
  6. Step 6: Final answer
    x = 175,314.43

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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.