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Finding the Fourth Proportional to 249,969.42, 374,978.16 and 70,054.92

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Solution

The fourth proportional to 249,969.42, 374,978.16 and 70,054.92 is: 105,089.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,969.42 : 374,978.16 = 70,054.92 : x
  2. Step 2: Convert to fraction form
    249,969.42/374,978.16 = 70,054.92/x
  3. Step 3: Cross multiply
    249,969.42x = 374,978.16 × 70,054.92
  4. Step 4: Simplify right side
    249,969.42x = 26,269,065,000.55
  5. Step 5: Solve for x
    x = 26,269,065,000.55/249,969.42
  6. Step 6: Final answer
    x = 105,089.11

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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.