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Finding the Fourth Proportional to 249,570.40, 374,355.60 and 243,009.40

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Solution

The fourth proportional to 249,570.40, 374,355.60 and 243,009.40 is: 364,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,570.40 : 374,355.60 = 243,009.40 : x
  2. Step 2: Convert to fraction form
    249,570.40/374,355.60 = 243,009.40/x
  3. Step 3: Cross multiply
    249,570.40x = 374,355.60 × 243,009.40
  4. Step 4: Simplify right side
    249,570.40x = 90,971,929,742.64
  5. Step 5: Solve for x
    x = 90,971,929,742.64/249,570.40
  6. Step 6: Final answer
    x = 364,514.10

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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.