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Finding the Fourth Proportional to 260,003, 390,004.50 and 63,011

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Solution

The fourth proportional to 260,003, 390,004.50 and 63,011 is: 94,516.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,003 : 390,004.50 = 63,011 : x
  2. Step 2: Convert to fraction form
    260,003/390,004.50 = 63,011/x
  3. Step 3: Cross multiply
    260,003x = 390,004.50 × 63,011
  4. Step 4: Simplify right side
    260,003x = 24,574,573,549.50
  5. Step 5: Solve for x
    x = 24,574,573,549.50/260,003
  6. Step 6: Final answer
    x = 94,516.50

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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.