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Finding the Fourth Proportional to 477,762.14, 716,746.90 and 145,329.50

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Solution

The fourth proportional to 477,762.14, 716,746.90 and 145,329.50 is: 218,025.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,762.14 : 716,746.90 = 145,329.50 : x
  2. Step 2: Convert to fraction form
    477,762.14/716,746.90 = 145,329.50/x
  3. Step 3: Cross multiply
    477,762.14x = 716,746.90 × 145,329.50
  4. Step 4: Simplify right side
    477,762.14x = 104,164,468,603.55
  5. Step 5: Solve for x
    x = 104,164,468,603.55/477,762.14
  6. Step 6: Final answer
    x = 218,025.79

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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.