Finding the Fourth Proportional to 135,660,552.57, 187,211,654.73 and 76,113,628.38
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Solution
The fourth proportional to 135,660,552.57, 187,211,654.73 and 76,113,628.38 is: 105,036,858.88
Step by Step Solution
- Step 1: Write the proportion equation
135,660,552.57 : 187,211,654.73 = 76,113,628.38 : x - Step 2: Convert to fraction form
135,660,552.57/187,211,654.73 = 76,113,628.38/x - Step 3: Cross multiply
135,660,552.57x = 187,211,654.73 × 76,113,628.38 - Step 4: Simplify right side
135,660,552.57x = 14,249,358,316,524,088 - Step 5: Solve for x
x = 14,249,358,316,524,088/135,660,552.57 - Step 6: Final answer
x = 105,036,858.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.