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Finding the Fourth Proportional to 190,903.70, 286,355.55 and 160,030.10

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Solution

The fourth proportional to 190,903.70, 286,355.55 and 160,030.10 is: 240,045.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,903.70 : 286,355.55 = 160,030.10 : x
  2. Step 2: Convert to fraction form
    190,903.70/286,355.55 = 160,030.10/x
  3. Step 3: Cross multiply
    190,903.70x = 286,355.55 × 160,030.10
  4. Step 4: Simplify right side
    190,903.70x = 45,825,507,302.06
  5. Step 5: Solve for x
    x = 45,825,507,302.06/190,903.70
  6. Step 6: Final answer
    x = 240,045.15

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1.5x scale

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.