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Finding the Fourth Proportional to 251,547.69, 347,185.08 and 144,189.60

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Solution

The fourth proportional to 251,547.69, 347,185.08 and 144,189.60 is: 199,009.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,547.69 : 347,185.08 = 144,189.60 : x
  2. Step 2: Convert to fraction form
    251,547.69/347,185.08 = 144,189.60/x
  3. Step 3: Cross multiply
    251,547.69x = 347,185.08 × 144,189.60
  4. Step 4: Simplify right side
    251,547.69x = 50,060,477,811.17
  5. Step 5: Solve for x
    x = 50,060,477,811.17/251,547.69
  6. Step 6: Final answer
    x = 199,009.89

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1.5x scale

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.