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Finding the Fourth Proportional to 255,095.40, 382,205.70 and 166,303.20

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Solution

The fourth proportional to 255,095.40, 382,205.70 and 166,303.20 is: 249,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,095.40 : 382,205.70 = 166,303.20 : x
  2. Step 2: Convert to fraction form
    255,095.40/382,205.70 = 166,303.20/x
  3. Step 3: Cross multiply
    255,095.40x = 382,205.70 × 166,303.20
  4. Step 4: Simplify right side
    255,095.40x = 63,562,030,968.24
  5. Step 5: Solve for x
    x = 63,562,030,968.24/255,095.40
  6. Step 6: Final answer
    x = 249,169.65

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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.